Nega Network has asked fans to play 'detective game' by putting a hidden message in Brown Eyed Girls's Ga In's teaser!
The message is about a rookie group that is debuting on May 9th. They are currently known as the Brown Eyed Boys.
Can you spot them? If you can't, check this out: http://img703.imageshack.us/img703/4718/20130424gain.jpg (photo from allkpop).